diff --git a/src/tools/vppapigen/vppapigen_crc.py b/src/tools/vppapigen/vppapigen_crc.py
index 525f6c0..f7e8296 100644
--- a/src/tools/vppapigen/vppapigen_crc.py
+++ b/src/tools/vppapigen/vppapigen_crc.py
@@ -7,7 +7,7 @@
 #
 # Plugin entry point
 #
-def run(args, input_filename, s):
+def run(output_dir, input_filename, s):
     j = {}
     major = 0
     minor = 0